Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9832309 | Method and apparatus to detect a stale number | Xun Fei, Dajun Chen, Yong Tian | 2017-11-28 |
| 9638373 | Energy efficient vertical cryogenic tank | Lanhui ZHAI, Minghui Dong, Xiao'e Pan | 2017-05-02 |